Foam Extrusion
During the chemical foam extrusion process chemical foaming and plastic resin agents are mixed and melted. The chemical foaming agent decomposes liberating gas which is dispersed in the polymer, melts and expands upon exiting the die. Due to the insulation properties of the foam structure foamed profile extrusions require more intense cooling than solid profiles.
A foam extrusion method is in which we extrusion may be subjected to pressure variation such as a vacuum with the controlled shaping of the plastic being obtained by power driven rolls within the chamber downstream of the die.
Other related extrusion processes are
- Profile Extrusion
- Overjacketing
- Pipe Extrusion
- Lamination
- Sheet Extrusion etc.
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